AnswersPA-Science 8 Q1Types of Chemical Reactions

Types of Chemical Reactions Answers

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1
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Which type of reaction is NaCl + AgNO3 → NaNO3 + AgCl?

A
synthesis
B
decomposition
C
oxidation
D
replacement
2
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A
synthesis
B
polymerization
C
decomposition
D
oxidation
E
replacement
3

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A
synthesis
B
polymerization
C
decomposition
D
oxidation
E
replacement
4

Rosa was looking for patterns to help predict the products of chemical reactions. She recorded three similar decomposition reactions in the table.What products should she record in the last row of the table?

Question illustration
A
2LiCl + 3O2
B
3LiCl + 2O2
C
2LiO + 3Cl2
D
3LiO+ 2Cl2
5

What else is produced during the combustion of propane, C3H8?

Question illustration
A
H2O
B
C3H8
C
O2
D
C3H8O2
6

Which three types of reactions yield a product that is a chemically bonded combination of reactants?

A
replacement, polymerization, decomposition
B
polymerization, decomposition, oxidation
C
decomposition, synthesis, replacement
D
oxidation, synthesis, polymerization
7

Which clue can be used to identify a chemical reaction as a replacement reaction?

A
The reaction has two reactants with ions that seem to switch places.
B
The reaction has a single reactant that changes into two or more products.
C
The reaction involves oxygen reacting with a hydrocarbon and giving off heat.
D
The reaction involves a single product forming from two or more reactants.
8

What is produced during the replacement reaction of Ba(NO3)2 and Na2SO4?

A
2BaNa + 2NO3SO4
B
2NaNO3 + BaSO4
C
NaNO3 + BaSO4
D
BaNa2 + (NO3)2SO4
9

Andre is predicting the products of chemical reactions. In one reaction, a hydrocarbon is the only reactant. What is the best prediction and explanation of this reaction?

A
Two new compounds form as the hydrocarbon undergoes a synthesis reaction.
B
Carbon dioxide and water form because the hydrocarbon undergoes a combustion reaction.
C
A polymer forms because the hydrocarbon joins with itself in a polymerization reaction.
D
Oxides form because the hydrocarbon combines with oxygen in an oxidation reaction.

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